/// <summary>
/// Explains a list of namables and shows the associated textbox
/// </summary>
/// <param name="namable">The namable to explain</param>
/// <param name="location">
/// The location where the explain box should be displayed. If empty is displayed, the location is
/// computed based on the combo box location
/// </param>
/// <param name="sensibleToMouseMove">Indicates that the explain box should be closed when the mouse moves</param>
private void ExplainAndShow(INamable namable, Point location, bool sensibleToMouseMove)
{
explainRichTextBox.Text = "";
if (namable != null)
{
TextualExplanation explanation = new TextualExplanation();
ITextualExplain textualExplain = namable as ITextualExplain;
if (textualExplain != null)
{
textualExplain.GetExplain(explanation, false);
}
explainRichTextBox.Text = explanation.Text;
explainRichTextBox.ProcessAllLines();
if (location == Point.Empty)
{
if (SelectionComboBox.DroppedDown)
{
explainRichTextBox.Location = new Point(
SelectionComboBox.Location.X + SelectionComboBox.Size.Width,
SelectionComboBox.Location.Y + SelectionComboBox.Size.Height
);
}
else
{
explainRichTextBox.Location = new Point(
SelectionComboBox.Location.X,
SelectionComboBox.Location.Y + SelectionComboBox.Size.Height
);
}
}
else
{
explainRichTextBox.Location = new Point(
Math.Min(location.X, EditionTextBox.Size.Width - explainRichTextBox.Size.Width),
Math.Min(location.Y, EditionTextBox.Size.Height - explainRichTextBox.Size.Height));
}
ConsiderMouseMoveToCloseExplanation = sensibleToMouseMove;
explainRichTextBox.Size = new Size(400, 200);
if (explainRichTextBox.Size.Width >= Size.Width * 0.8)
{
explainRichTextBox.Size = new Size((int)(Size.Width * 0.8), explainRichTextBox.Size.Height);
}
if (explainRichTextBox.Size.Height >= Size.Height * 0.8)
{
explainRichTextBox.Size = new Size(explainRichTextBox.Size.Width, (int)(Size.Height * 0.8));
}
explainRichTextBox.Show();
EditionTextBox.SendToBack();
}
}
/// <summary>
/// Displays the combo box if required and updates the edotor's text
/// </summary>
private void DisplayComboBox()
{
int index = EditionTextBox.SelectionStart - 1;
string prefix = CurrentPrefix(index).Trim();
index = Math.Max(0, index - prefix.Length);
SortedSet <ObjectReference> allChoices = AllChoices(index, prefix);
if (prefix.Length <= EditionTextBox.SelectionStart)
{
// It seems that selection start and length may be lost when losing the focus.
// Store them to be able to reapply them
_selectionStart = EditionTextBox.SelectionStart - prefix.Length;
_selectionLength = prefix.Length;
EditionTextBox.Select(_selectionStart, _selectionLength);
if (allChoices.Count == 1)
{
EditionTextBox.SelectedText = allChoices.First().DisplayName;
}
else if (allChoices.Count > 1)
{
SelectionComboBox.Items.Clear();
foreach (ObjectReference choice in allChoices)
{
SelectionComboBox.Items.Add(choice);
}
if (prefix.Length > 0)
{
SelectionComboBox.Text = prefix;
}
else
{
SelectionComboBox.Text = allChoices.First().DisplayName;
}
// Try to compute the combo box location
// TODO : Hypothesis. The first displayed line is the first line of the text
int line = 1;
string lineData = "";
for (int i = 0; i < EditionTextBox.SelectionStart; i++)
{
switch (EditionTextBox.Text[i])
{
case '\n':
line += 1;
lineData = "";
break;
default:
lineData += EditionTextBox.Text[i];
break;
}
}
SizeF size = CreateGraphics().MeasureString(lineData, EditionTextBox.Font);
int x = Math.Min((int)size.Width, Location.X + Size.Width - SelectionComboBox.Width);
int y = (line - 1) * EditionTextBox.Font.Height + 5;
Point comboBoxLocation = new Point(x, y);
SelectionComboBox.Location = comboBoxLocation;
PendingSelection = true;
EditionTextBox.SendToBack();
SelectionComboBox.Show();
SelectionComboBox.Focus();
}
}
}